### Sakaé Fuchino, Saharon Shelah and Lajos Soukup

## On a theorem of Shapiro

We show that a theorem of Leonid B. Shapiro which was proved under
`MA,` is
actually independent from `ZFC`.
We also give a direct proof of the Boolean
algebra version of the theorem under `MA(Cohen)`.

### Downloading the paper

** appeared in ** * Math. Japonica * 40(1994), 199-206.